This week scientists in the US announced they’ve developed another Artificial Intelligence (AI) system that can translate a person’s thoughts into text by analysing their brain activity, and it’s the latest in an increasingly long line of developments that also recently saw scientists decode even monkey’s thoughts into text.
The researchers from the University of California, San Francisco, developed the AI to decipher up to 250 words in real time from a set of between 30 and 50 sentences. The algorithm was then trained using the neural signals of four women with electrodes implanted in their brains, which were already in place to monitor epileptic seizures.
The volunteers repeatedly read sentences aloud while the researchers fed the brain data to the AI to unpick patterns that could be associated with individual words, and the average word error rate across a repeated set was as low as 3 per cent.
“A decade after speech was first decoded from human brain signals, accuracy and speed remain far below that of natural speech,” states a paper detailing the research, published this week in the journal Nature Neuroscience.
“Taking a cue from recent advances in machine translation, we trained a recurrent neural network to encode each sentence-length sequence of neural activity into an abstract representation, and then to decode this representation, word by word, into an English sentence.”
The average active vocabulary of an English speaker is estimated to be around 20,000 words, meaning the system is still a long way off being able to understand regular speech. The researchers are also unsure about how well the technology will scale up, as the decoder relies on learning the structure of a sentence and using it to improve its predictions. This means that each new word increases the number of possible sentences, therefore reducing the overall accuracy.
“Although we should like the decoder to learn and to exploit the regularities of the language, it remains to show how much data would be required to expand from our tiny languages to a more general form of English,” the paper states.
They then go on to suggest that one possibility could be to combine it with other Brain Machine Interface (BMI) technologies, such as Elon Musk’s Neuralink or Facebook’s mind reading technology, that use different types of implants and algorithms to read people’s minds and that the technology could one day be used to enable telepathic communication between people – something that’s already also happened not once but twice in a move that will bring about “the next great wave in human-oriented computing.”
Matthew Griffin, described as “The Adviser behind the Advisers” and a “Young Kurzweil,” is the founder and CEO of the World Futures Forum and the 311 Institute, a global Futures and Deep Futures consultancy working between the dates of 2020 to 2070, and is an award winning futurist, and author of “Codex of the Future” series.
Regularly featured in the global media, including AP, BBC, Bloomberg, CNBC, Discovery, RT, Viacom, and WIRED, Matthew’s ability to identify, track, and explain the impacts of hundreds of revolutionary emerging technologies on global culture, industry and society, is unparalleled. Recognised for the past six years as one of the world’s foremost futurists, innovation and strategy experts Matthew is an international speaker who helps governments, investors, multi-nationals and regulators around the world envision, build and lead an inclusive, sustainable future.
A rare talent Matthew’s recent work includes mentoring Lunar XPrize teams, re-envisioning global education and training with the G20, and helping the world’s largest organisations envision and ideate the future of their products and services, industries, and countries.
Matthew's clients include three Prime Ministers and several governments, including the G7, Accenture, Aon, Bain & Co, BCG, Credit Suisse, Dell EMC, Dentons, Deloitte, E&Y, GEMS, Huawei, JPMorgan Chase, KPMG, Lego, McKinsey, PWC, Qualcomm, SAP, Samsung, Sopra Steria, T-Mobile, and many more.
FANATICALFUTURIST PODCAST! Hear about ALL the latest futures news and breakthroughs!SUBSCRIBE
1000's of articles about the exponential future, 1000's of pages of insights, 1000's of videos, and 100's of exponential technologies: Get The Email from 311, your no-nonsense briefing on all the biggest stories in exponential technology and science.